Nordson EFD vision-guided dispensing robots use fiducial marks
to automatically offset the dispense program and compensate for slight shifts in workpiece orientation or location.
The basic idea is to create a non-reversal pattern with two or three fiducial marks
on the board or panel.
locations are reviewed and fiducial marks
are added, as needed, to support component placement and flying probe testing.
Thus, for scanning aerial photographs, an A3 format is necessary, because fiducial marks
have to be clearly visible performing inner orientation.
Up to three fiducial marks
are selected in a learning procedure.
This low error probability system based in application of hyperbolic wavelet transforms and integrated circuits photo masks fiducial marks
geometric moment features.
The chorobates was an elongated wooden platform, sometimes with a water-filled longitudinal groove, having plumb bobs on each end that were aligned with fiducial marks
on the structure.
Raw images can also be copied so that you can insert such things as highlights, fiducial marks
, and notes directly into the copy while preserving the original image.
Sampling for calculations of the average friction is restricted to the middle portions of each cycle, as indicated by fiducial marks
ONE OF THE handy aspects of getting boards assembled at Screaming Circuits is we don't require fiducial marks
for standard process boards.
If the used camera is calibrated, interior image orientation may be done by transforming the measured coordinates into a calibration system, defined by fiducial marks
or residual crosses.